Why does my GLS550’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your GLS550 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Mercedes-Benz GLS550 engine noises bad?

Unusual noises can signal a problem with your Mercedes-Benz GLS550 engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz GLS550 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my Mercedes-Benz GLS550 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your GLS550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a GLS550 engine to suddenly stop?

Your GLS550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who repairs Mercedes-Benz GLS550 engines?

Your local Firestone Complete Auto Care offers Mercedes-Benz GLS550 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

2017 Mercedes-Benz GLS550 Engine Repair

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2017 Mercedes-Benz GLS550 Trim Options

Select your Mercedes-Benz GLS550 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz GLS550 parts will get older and change.

V8/4.7L

Repairs for Your 2017 Mercedes-Benz GLS550

Stuff wears out. Even your Mercedes-Benz GLS550’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 2017 Mercedes-Benz GLS550.

We’re Trained to Care for Mercedes-Benz GLS550 Engines

Mercedes-Benz GLS550 engines are known for their reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 2017 Mercedes-Benz GLS550 engine repair or replacement parts. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercedes-Benz GLS550 engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2017 Mercedes-Benz GLS550

If your GLS550 check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your vehicle's ignition, Potential causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your GLS550 issues diagnosed and our expert techs will get the root of the problem. engine rattling, oil leaks, or engine misfiring.

2017 GLS550 Engine Services

When your Mercedes-Benz GLS550 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We want to give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for GLS550 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the timing chain or belt, valve guide seal, sensors, or another part.

Questions About 2017 Mercedes-Benz GLS550 Engines

Why does my GLS550’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your GLS550 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Mercedes-Benz GLS550 engine noises bad? Unusual noises can signal a problem with your Mercedes-Benz GLS550 engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz GLS550 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my Mercedes-Benz GLS550 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your GLS550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a GLS550 engine to suddenly stop? Your GLS550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who repairs Mercedes-Benz GLS550 engines? Your local Firestone Complete Auto Care offers Mercedes-Benz GLS550 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!